Implement for smoothing or polishing metallic surfaces



(No Model;

I J. WALKER. IMPLEMENT FORLSMOOTHING 0R POLISHING METALLIC SURFACES. No. 296,370. I Patentedllpr. 8, 1884'.

Invenor N, PETERS. FhnwLuho mylw. wnbin mu. D. c.

EJNITE STATES PATENT rinse.

IMPLEMENT FOR SMOOTHING 0R POLISHING METALLIC SURFACES.

SPECIFICATION forming part of Letters Patent No. 296,370, dated April 8, 1884.

Application filed January 1S, 3684. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM J AMES \VALK- ER, of Franklin, in the county of Norfolk, of the Commonwealth of Massachusetts, have invented a new and useful Improvement in Implements for Smoothing or Polishing Metallic Surfaces; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings,

, is designed forsmoothing the curved and plane surfaces of hat-dies. Its smoothing-head A is composed of an elastic hollow vessel, a, of propershape, of vulcanized india-rubber, and

' a charge, b, of liquid-aswater, for instance, though in some cases an oil of suitable kind 1 the implement.

may be substituted.

On the outer surface of the vessel a there is to be a covering, Z, of a suitable abrasive orpolishing material. The said vessel has a metallic neck ,or carrier, B, properly constructed not only to hold it firmly, with a wator-tight joint between them, and to admit of the charge of water being passed or forced through it-into the vessel, but also for attaching or securing it (the said neck) to a mandrel or shaft or other device for rapidly revolving To this end the neck B is composed in part of a tubular shank, c, and a diskshaped flange, d, extending therefrom concentrically at its lower end. This shank c is screw-threaded on its periphery to receive or screw into a tubular nut, 6, between which and the flange (I there is a disk, f, of metal, through which the screw 0 passes centrally. 0n the upper end of the shank c is an elastic and wator-tight packing, g, which is forced down upon said end by a screw, 71, screwed into the nut e, the latter projecting, as shown, above the screw h. Furthermore, atapering cock, 0, ex-

tends through the nut e and theshank 0. Besides serving to keep the nut from revolving on the shank, this cock is either to open or close communication through the bore of the. The head i of this cock,,like that said shank.

of a common screw, is nicked to receive the blade of a screw-driver when used for revolving the cock. Theupper part of the head A extends, as shown, between the flange d and the disk f, and, being of a water-proof and elastic material, will form with the flange and disk, when the latter is forced down closely by the nut e, a water-proof joint between the said head A and the metallic neck B.

Preparatory to charging the head with water or other proper liquid practically incompressible, the cock is to be turned open, to allow the charge to 'be passed or forced into the head, which having been accomplished the cock is to lee-closed, the packing 9 put in place, and the screw h screwed down hard upon it. The packing and screw are additional means of preventing leakage of the charge, and, besides, serve to cover the upper open end of the shank c, in order to prevent dirt or emery or the grinding or polishing material used on the outer surface of the head A from getting into the bore of the shank o and stopping such or wearing the cock.

I make no claim to a shoe-sole buffer made as represented in either of the United States liquid. Furthermore, there is in neither of the said shoe-sole buffers, as in my smoothing implement, a nut extended upward beyond its male screw, and having within it the said nut, a packing, and a screw beyond which the nut is projected upward.

The elastic and waterproof head of vulcan ized indie-rubber and its charge of water or other like inelastic liquid is found when in use, and covered on its external surface with emery or other suitable abrasive or polishing material, to be capable of operating to better advantage than a head of felt, or one made of an inelastic bag or covering of leather or cloth, and a stuffing therefor of hair, wool, or other like material.

By reason of the elasticity and water-proof 10o character of the part co'f the head and the inelasticity of the charge I) of liquid thereof, the

head, when revolving against a surface, will adapt itself to the corners andserrations thereof, and substantially inaintainits inornial form to far better advantage, and with new and useful effects, comparatively speaking.

I claim l. The combination of. the t ubular and.

flanged screw 0" and the disk fwith the 'nut e, screwed upon and extended beyond the said screw, all being substantially as represented. 2. The combination of the tubular and flanged screw 0 and the disk f with the nut e, screwed on and extended beyond the screw, as set forth, and with the screw it and packing to the said screw 0,

9 arranged inthe said nut, and with respect 15 all, being substantially as represented.

3. The combination of the screw-threaded tubular shank 0, having thdisk-shaped flange d, screw-threaded nut e, and disk f, as de- 20 scribed, with the cock 0, extended into the nut e and tubular screw 0, and with the waterproof and elastic vessel a,.applied to such neck, all being substantially as represented.

VILLIAM JAMES WALKER. Witnesses:

R. H. EDDY, S. N. PIPER. 

